Stirring vessel



4, 9 E. KELLER 1,983,233

STIRRING VESSEL Filed July 30, 1932 jnuenton' and :64.

Patented Dec. 4, 1934 UNITED STATES STIRRING VESSEL 1 Ernst Keller, Basel, Switzerland Application July 30, 1932, Serial No. 626,962 In Germany November 12, 1931 2 Claims.

This invention relates to a new shape for stirring vessels made of glass, such as are employed in laboratories or chemical works.

Two embodiments of theinvention are illus- 5 trated by way of example in the accompanying drawing in which:

Fig. 1 shows a form of construction without lateral necks.

Fig. 2 shows a construction with lateral necks.

The characteristic feature of the new shape consists in that from the flat or slightly bulged.

with smaller necks 14 rising therefrom laterally 1 of the main neck 13 with the axes of the lateral necks parallel to the side walls 11 atthese points.

The free edges of thenecks 13 and 14 are reinforced as at 15.

The advantages derived from the shape according to the invention are manifold. As the bottom is of smaller diameter than thetop and relatively flat, a good stirring effect will be obtained,'even in the case of a small charge. The on lateral necks 14 are so arranged that feed tubes 1 and thermometers can be placed therein. As the necks are arranged as extensions of the vessel wall 11, the thermometer or gas feed tube can be inserted to any desired depth into the vessel. 5 Consequently, the shape according to the invention is far superior to the knownshapes, especially to the round vessels.

- 1. A stirring vessel having a round bulged bottom with a conical side wall widening in an upward direction and thenmerging into a shoulder portion extending inwardly substantially at right angles to theside wall and terminating in a wide neckof approximately the same diameter as the bottom, the neck, shoulder portion, side wall and bottom being connected with rounded corners. v

2; A stirring vessel as specified in claim 1, in

which lateral necks are arranged on the shoulder portion with their axes lying parallel to the side wall of the vessel at the points in question.

ERNST KELLER. 

